西藏日喀则市查孜地热田水化学及同位素特征研究

doi:10.19388/j.zgdzdc.2020.05.02

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Abstract Chazi geothermal field is located in Southwestern Tibetan Plateau. The geothermal potential has been ascertained by field survey and geothermal drilling. The hydrogeochemical characteristics and isotopic composition of this geothermal field show that the underground water belongs to HCO₃-Na. The difference of ion concentration between hot water and cold water shows that they have different material sources and certain hydraulic relations. The isotope analysis of δD and δ¹⁸O determines that the major source of the geothermal water in this area is meteoric water and water melt from the mountains snow and ice with the height above 5 652 m. The geothermal water was the result of the mixture of deep infiltrated meteoric water and deep-source fluid when they move along the fracture zone. The fracture zone is the main channel of hot spring and the reservoir of geothermal fluid. The migration retention time of the geothermal water in this geothermal field was at least 41 years. According to the calculated temperature of SiO₂ geothermometer, the geothermal temperature of the underground heat reservoir is about 148.18~153.49 ℃, and natural heat discharge is 2 264.33×10¹² J/a.

Key words： Chazi geothermal field hydrochemistry isotope thermal reservoir temperature natural heat discharge

Received: 24 February 2020

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	LUO Shaoqiang
	XU Lin
	TANG Hua
	XIAO Jin
	HU Lin

Cite this article:

LUO Shaoqiang,XU Lin,TANG Hua, et al. Hydrochemical and isotopic characteristics of Chazi geothermal field in Shigatse in Tibet[J]. , 2020, 7(5): 10-15.

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http://journal25.magtechjournal.com/Jwk_dzdc/EN/10.19388/j.zgdzdc.2020.05.02 OR http://journal25.magtechjournal.com/Jwk_dzdc/EN/Y2020/V7/I5/10

[1] 王贵玲,张发旺,刘志明.国内外地热能开发利用现状及前景分析[J].地球学报,2000,21(2):134-139.
[2] 杨宋康,罗维,裴永炜,等.贵州省水热型地热资源分布及流体水化学特征[J].中国地质调查,2018,5(2):38-44.
[3] 汪名鹏. 盐城市地热资源特征及其开发利用建议[J].中国地质调查,2020,7(1):14-22.
[4] 西藏地勘局地热地质大队.西藏自治区日喀则市地热资源调查与评价报告[R].拉萨:西藏地勘局地热地质大队,2019.
[5] 江西省地质调查院.1:25万措麦区幅区域地质调查报告[R].南昌:江西省地质调查院,2002.
[6] 河北省地质调查院区调所,石家庄经济学院.西藏自治区桑桑区幅区域地质调查报告(1:250 000)[R].石家庄:河北省地质调查院区调所,2003.
[7] 罗绍强,男达瓦,李欢,等.西藏日喀则市查孜地热田地质构造特征与形成机制[J].四川地质学报,2020,40(1):30-33.
[8] 国土资源部储量司,中国矿业联合会地热开发管理专业委员会,北京市地质工程勘察院.GB/T 11615—2010地热资源地质勘查规范[S].北京:中国国家标准化管理委员会,2011.
[9] Arnórsson S,Andrésdóttir A.Processes controlling the distribution of boron and chlorine in natural waters in Iceland[J].Geochim Cosmochim Acta,1995,59(20):4125-4146.
[10] 郭宁,刘昭,男达瓦,等.西藏昌都觉拥温泉水化学特征及热储温度估算[J].地质论评,2020,66(2):499-509.
[11] 孙红丽,马峰,蔺文静,等.西藏高温地热田地球化学特征及地热温标应用[J].地质科技情报,2015,34(3):171-177.
[12] 王恒纯. 同位素水文地质概论[M].北京:地质出版社,1991.
[13] 张雪,周训,李再光,等.河北丰宁县洪汤寺温泉的水化学与同位素特征[J].水文地质工程地质,2010,37(5):123-127.
[14] Craig H.Isotopic variations in meteoric waters[J].Science,1961,133(3465):1702-1703.
[15] Zhou X,Fang B,Zhou H Y,et al.Isotopes of deuterium and oxygen-18 in thermal groundwater in China[J].Environ Geol,2009,57(8):1807-1814.
[16] 西藏自治区地质调查院.西藏地热资源现状评价与区划[R].拉萨:西藏自治区地质调查院,2009.
[17] 汪集旸,熊亮萍,庞忠和.中低温对流型地热系统[M].北京:科学出版社,1993.
[18] 郑永飞,陈江峰.稳定同位素地球化学[M].北京:科学出版社,2000.
[19] Han D M,Liang X,Jin M G,et al.Evaluation of groundwater hydrochemical characteristics and mixing behavior in the Daying and Qicun geothermal systems,Xinzhou Basin[J].J Volcanol Geother Res,2010,189(1/2):92-104.
[20] 郑西来,刘鸿俊.地热温标中的水-岩平衡状态研究[J].西安地质学院学报,1996,18(1):74-79.
[21] 中华人民共和国地质矿产部.DZ 40—1985地热资源评价方法[S].1985.